133563213613 has 2 divisors, whose sum is σ = 133563213614. Its totient is φ = 133563213612.

The previous prime is 133563213601. The next prime is 133563213647. The reversal of 133563213613 is 316312365331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129788708644 + 3774504969 = 360262^2 + 61437^2 .

It is a cyclic number.

It is not a de Polignac number, because 133563213613 - 2¹³ = 133563205421 is a prime.

It is a super-3 number, since 3×133563213613³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133563213683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66781606806 + 66781606807.

It is an arithmetic number, because the mean of its divisors is an integer number (66781606807).

Almost surely, 2^133563213613 is an apocalyptic number.

It is an amenable number.

133563213613 is a deficient number, since it is larger than the sum of its proper divisors (1).

133563213613 is an equidigital number, since it uses as much as digits as its factorization.

133563213613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 37.

Adding to 133563213613 its reverse (316312365331), we get a palindrome (449875578944).

The spelling of 133563213613 in words is "one hundred thirty-three billion, five hundred sixty-three million, two hundred thirteen thousand, six hundred thirteen".